Tesla has bitterly defended the outgoing Roadster and now there's word the company is developing a successor.

Tesla has bitterly defended the outgoing Tesla Roadster and now there's word the company is developing a successor.

Set to be introduced in 2014, the redesigned model will reportedly be based on a new platform which could be a shortened version of the architecture that underpins the Tesla Model S. More interestingly, the platform could also spawn an entry-level sedan which would be about the same size as the BMW 3-Series.

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